[R] sequentially aggregating elements of a vector
Hi, for labelling the stacked bars in a barplot, I need to sequentially sum up the elements of a vector. Suppose I have; x - c(1,2,3,4) (which correspond to the bar-width of stacked bars) I need; y - c(1,3,6,11) (which corresponds to the upper y-values for each bar). What is the easiest way in R to get from x to y? (Or more general; to add labels inside the bars in a stacked barplot) thanks! __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] sequentially aggregating elements of a vector
Hello, Try ?cumsum cumsum(1:4) [1] 1 3 6 10 Hope this helps, Rui Barradas Em 14-10-2013 19:49, Martin Batholdy escreveu: Hi, for labelling the stacked bars in a barplot, I need to sequentially sum up the elements of a vector. Suppose I have; x - c(1,2,3,4) (which correspond to the bar-width of stacked bars) I need; y - c(1,3,6,11) (which corresponds to the upper y-values for each bar). What is the easiest way in R to get from x to y? (Or more general; to add labels inside the bars in a stacked barplot) thanks! __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] sequentially aggregating elements of a vector
The last element 11 in y is confusing. sorry for the typo. It is of course y - c(1,3,6,10) cumsum(x) thanks! On Oct 14, 2013, at 20:57 , arun smartpink...@yahoo.com wrote: The last element 11 in y is confusing. cumsum(x) [1] 1 3 6 10 A.K. On Monday, October 14, 2013 2:51 PM, Martin Batholdy batho...@googlemail.com wrote: Hi, for labelling the stacked bars in a barplot, I need to sequentially sum up the elements of a vector. Suppose I have; x - c(1,2,3,4) (which correspond to the bar-width of stacked bars) I need; y - c(1,3,6,11) (which corresponds to the upper y-values for each bar). What is the easiest way in R to get from x to y? (Or more general; to add labels inside the bars in a stacked barplot) thanks! __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
